Fiberglass laminates and secondary bonding

Discussion in 'Fiberglass and Composite Boat Building' started by TimberDoodle, Apr 28, 2009.

  1. TimberDoodle
    Joined: Apr 2009
    Posts: 1
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: Colorado

    TimberDoodle New Member

    With the secondary bonding of epoxy, can you add additional fiberglass laminates to a lay-up that has cured, been flowcoated, and sanded, or is that just asking for delamination trouble in the future?
     
  2. AroMarine
    Joined: Jul 2005
    Posts: 45
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: Atlantic City NJ

    AroMarine Junior Member

    Secondary bonding on cured epoxy usually needs the removal of the amine blush and some grinding for bite. Usually I grind first then vac and wash with water not solvents. Water cuts the amine. Some resin formulas are suposedly amine free or small amounts and therefore can be relaminated without much prep. This would need to be discussed with resin manufacturer. I am always leary so I do the grinding.
     
  3. Landlubber
    Joined: Jun 2007
    Posts: 2,640
    Likes: 124, Points: 0, Legacy Rep: 1802
    Location: Brisbane

    Landlubber Senior Member

    " been flowcoated, and sanded"...nup, not really, you are asking for trouble.

    We would not do this in the yard, so I guess that is all I can say.
     

  4. Craig_Hastie
    Joined: Jun 2004
    Posts: 11
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: Airlie Beach, Australia

    Craig_Hastie Junior Member

    What is the job, inside a cupboard or structural? Is it epoxy flowcoat?
     
Loading...
Similar Threads
  1. JackyJ243
    Replies:
    8
    Views:
    125
  2. Scuff
    Replies:
    8
    Views:
    335
  3. Flork
    Replies:
    16
    Views:
    604
  4. farmerben
    Replies:
    10
    Views:
    582
  5. MaddMatt
    Replies:
    4
    Views:
    491
  6. Daan
    Replies:
    12
    Views:
    694
  7. leaky
    Replies:
    18
    Views:
    836
  8. BornByAccident
    Replies:
    6
    Views:
    365
  9. BHM36
    Replies:
    3
    Views:
    381
  10. HCB66
    Replies:
    9
    Views:
    636
Forum posts represent the experience, opinion, and view of individual users. Boat Design Net does not necessarily endorse nor share the view of each individual post.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Your circumstances or experience may be different.